发明授权
- 专利标题： Image forming apparatus
- 专利标题（中）： 图像形成装置
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申请号： US724499申请日： 1996-09-30
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公开(公告)号： US5835821A公开(公告)日： 1998-11-10
- 发明人: Hiroyuki Suzuki , Masahiro Itoh , Masahiro Inoue , Kenichiro Waki , Takeo Yamamoto , Ryo Inoue
- 申请人： Hiroyuki Suzuki , Masahiro Itoh , Masahiro Inoue , Kenichiro Waki , Takeo Yamamoto , Ryo Inoue
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-274900 19950928; JPX7-274903 19950928; JPX8-034313 19960129
- 主分类号： G03G15/02
- IPC分类号： G03G15/02
摘要：
An image forming apparatus includes image bearing member for bearing a toner image; charging member contactable to the image bearing member to electrically charge the image bearing member; wherein .delta.V=.vertline.Vdc-Vs.vertline. is different between a first area of the image bearing member which is going to be image area and second area of the image bearing member which is going to be non-image area, where Vdc is a DC component of a voltage applied to the charging member, and Vs is is a potential of the image bearing member charged by the charging member.